Thanks. I've gone for the least noisy one but not got it on yet as can't get the lambda out of the cat. Had a 24 inch breaker bar on it but it won't shift so I've got a replacement on it's way.
Just trying to get it sounding a little more like a motorbike

Thanks. I've gone for the least noisy one but not got it on yet as can't get the lambda out of the cat. Had a 24 inch breaker bar on it but it won't shift so I've got a replacement on it's way.
Just trying to get it sounding a little more like a motorbike

Thanks Ced. I've been spraying it daily for over a week with WD40 penetrating fluid in anticipation of it being tight.
I've been in the motor trade over 45 years and come across some seized components and think the only thing that would shift this lambda is the "gas axe" which would probably destroy the unit so that's why I've got a replacement probe on it's way.

Shock 'n' Unlock along with the usual penetrating oils contains a freezing agent which shrinks the component fractionally.

I have been surprised on a number of occasions how a seriously seized thread loosened off.

The technique is to apply and leave overnight then apply a fresh application and TIGHTEN the component a fraction before loosening a fraction.

Keep tightening and loosening a fraction only till you get movement, then, apply a fresh application and tighten/loosen alternately again until the free movement gets more and more and the component can be unscrewed.